한국해양공학회지 (Journal of Ocean Engineering and Technology)

  • 제26권5호
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  • Pages.11-17
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  • 2012
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  • 1225-0767(pISSN)
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  • 2287-6715(eISSN)
한국해양공학회 (Korean Society of Ocean Engineers)
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유한요소 모델 개선기법을 이용한 손상추정

Damage Detection Using Finite Element Model Updating

  • 민천홍 (한국해양과학기술원 선박해양플랜트연구소 해양시스템연구부) ;
  • 최종수 (한국해양과학기술원 선박해양플랜트연구소 해양시스템연구부) ;
  • 홍섭 (한국해양과학기술원 선박해양플랜트연구소 해양시스템연구부) ;
  • 김형우 (한국해양과학기술원 선박해양플랜트연구소 해양시스템연구부) ;
  • 여태경 (한국해양과학기술원 선박해양플랜트연구소 해양시스템연구부)
  • Min, Cheon-Hong (Ocean System Engineering Research Division, Maritime and Ocean Engineering Research Institute, Korea Institute of Ocean Science and Technology) ;
  • Choi, Jong-Su (Ocean System Engineering Research Division, Maritime and Ocean Engineering Research Institute, Korea Institute of Ocean Science and Technology) ;
  • Hong, Sup (Ocean System Engineering Research Division, Maritime and Ocean Engineering Research Institute, Korea Institute of Ocean Science and Technology) ;
  • Kim, Hyung-Woo (Ocean System Engineering Research Division, Maritime and Ocean Engineering Research Institute, Korea Institute of Ocean Science and Technology) ;
  • Yeu, Tae-Kyeong (Ocean System Engineering Research Division, Maritime and Ocean Engineering Research Institute, Korea Institute of Ocean Science and Technology)
  • 투고 : 2012.07.02
  • 심사 : 2012.10.08
  • 발행 : 2012.10.31
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초록

In this study, a damage detection method that uses sensitivity-based finite (FE) element model updating with the natural frequency and zero frequency was proposed. The stiffness matrix for a structure was modified using the sensitivity-based FE model updating method. A sensitivity analysis was used to update the FE model, and the natural frequencies and zero frequencies were considered as target parameters to supplement the information on the vibration characteristics. The locations and values of the damages were estimated from the modified stiffness matrix. Several numerical examples were considered to verify the performance of the proposed method.

키워드

참고문헌

  1. 이소정, 김정태, 이진학, 강윤구 (2009). "최적화 화음탐색법을 이용한 항만 케이슨 구조물의 구조건전성 평가", 한국해양공학회지, 제23권, 제1호, pp 122-128.
  2. 홍섭 등 (2012). "2011 심해저 광물자원 개발사업 보고서 - II. 개발기술 연구", 국토해양부.
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  7. Park, S.Y., Park, D.C., Kim, E.H., and Kim, H.S. (2011). "Damage Evaluation on a Jacket Platform Structure using Modal Properties", Proceeding of the Twenty-first International Offshore and Polar Engineering Conference, Maui, Hawaii, USA, ISOPE, Vol 1, pp 245-250.
  8. Wang, J., Li, H., Li, P. and Hu, S.L.J. (2010). "Using Modal Frequencies for Damage Assessment in Offshore Jacket Structures", Proceeding of the Twentieth International of Offshore and Polar Engineering Conference, Beijing, China, ISOPE, Vol 1, pp 415-421.
  9. Xu, C., Chen, G. and Xie, J. (2010). "Damage Detection of Offshore Platform Model using Empirical Mode Decomposition and Wigner-ville Distribution", Proceeding of the Twentieth International of Offshore and Polar Engineering Conference, Beijing, China, ISOPE, Vol 4, pp 644-652.

피인용 문헌

  1. Conceptual Design of a Riser for 10 MW OTEC vol.18, pp.1, 2015, https://doi.org/10.7846/JKOSMEE.2015.18.1.29
  2. Study on Damage Detection Method using Meta Model vol.29, pp.5, 2015, https://doi.org/10.5574/KSOE.2015.29.5.351